Reversible regulation of CdTe quantum dots fluorescence intensity based on Prussian blue with high anti-fatigue performance

2019 ◽  
Vol 55 (5) ◽  
pp. 644-647 ◽  
Author(s):  
Qian Ma ◽  
Hui Zhang ◽  
Jinxing Chen ◽  
Shaojun Dong ◽  
Youxing Fang
Keyword(s):  
Quantum Dots ◽  
Prussian Blue ◽  
Fluorescence Intensity ◽  
Cdte Quantum Dots ◽  
Fatigue Performance ◽  
Switching Device ◽  
Electrochromic Material ◽  
Fluorescence Switching

Excellent anti-fatigue performance of the fluorescence switching device based on electrochromic material Prussian blue and fluorophore CdTe quantum dots was realized.

scholarly journals Silver ion-doped CdTe quantum dots as fluorescent probe for Hg2+ detection

RSC Advances ◽  
2020 ◽  
Vol 10 (64) ◽  
pp. 38965-38973
Author(s):  
Huazheng Li ◽  
Wangwei Lu ◽  
Gaoling Zhao ◽  
Bin Song ◽  
Jing Zhou ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Fluorescent Probe ◽  
Fluorescence Intensity ◽  
Silver Ion ◽  
Cdte Quantum Dots ◽  
Detection Range ◽  
Cdte Qds ◽  
Linear Relationships ◽  
The Relationship

Ag-doped CdTe QDs emit multiple-fluorescence peaks, and the relationship between fluorescence intensity and the concentration of Hg2+ is established. Two linear relationships are obtained, which is benefit to the extension of detection range.

Application of CdTe Quantum Dots to Development Fingerprints on Adhesive Surfaces

2011 ◽  
Vol 694 ◽  
pp. 874-880 ◽  
Author(s):  
Rui Qin Yang ◽  
Yong Gang Wang ◽  
Bin Bin Xia ◽  
Yan Ji Wang ◽  
Jian Jun Liu
Keyword(s):  
Quantum Dots ◽  
Fluorescence Spectroscopy ◽  
Fluorescence Intensity ◽  
Development Time ◽  
Ph Value ◽  
Development Rate ◽  
Water Soluble ◽  
Cdte Quantum Dots ◽  
Cdte Qds ◽  
Effective Development

Water-soluble fluorescent CdTe quantum dots were synthesized using TGA (Thiolglycolic acid) as the stabilizer and characterized by fluorescence spectroscopy. This fluorescent material was applied to development fingerprints deposited on the sticky side of adhesives. The development conditions such as development time, temperature and pH value of QDs solution were investigated. The comparison experimental with traditional methods and development rate were also studied. The results show that this material exhibited strong visible fluorescence under excitation at 365 nm. CdTe QDs can detect fingerprints on different adhesive surfaces. In addition, the development rate of fingerprints on the adhesive side of cellulose tape was discussed and the effective development rate for 30-days-aged fingerprints can reach to 72%. Furthermore, the developed fingerprints have higher and stable fluorescence intensity, weaker background interference and better contrast between fingerprints and the substrate. CdTe QDs is a promising reagent for fingerprints development on adhesive surfaces.

Inorganic Nanoparticles Modified Molecular Beacons as Fluorescent DNA Biosensors

2013 ◽  
Vol 372 ◽  
pp. 111-114
Author(s):  
Meng Meng Song ◽  
Wen Juan Guo ◽  
Zhao Dai ◽  
Kai Li Qiu ◽  
Jun Fu Wei
Keyword(s):  
Quantum Dots ◽  
Fluorescence Intensity ◽  
Resonance Energy Transfer ◽  
Resonance Energy ◽  
High Specificity ◽  
Inorganic Nanoparticles ◽  
Molecular Beacons ◽  
Cdte Quantum Dots ◽  
Dna Biosensors ◽  
Black Hole Quencher

This study reports inorganic nanoparticles modified molecular beacons as fluorescent DNA biosensors. MBs were modified by using CdTe quantum dots as energy donors and 4-(4'-(dimethylamino) phenylazo) benzoic acid, black hole quencher 1 and Au nanoparticles as energy acceptors, respectively. CdTe quantum dots were linked to molecular beacons when 1-ethyl-3-(3-dimethylaminopropyl) carbodi-imide hydrochloride was added. The fluorescence intensity of the modified molecular beacons decreased tremendously compared to the fluorescence intensity of CdTe quantum dots, which indicated that the fluorescence resonance energy transfer occurred between the donors and acceptors. The results indicated that this type of molecular beacons has high specificity and can be used to distinguish complementary DNA and its mutants.

Fluorescenсе Properties of Complexes of Coumarin Derivatives/CdTe Quantum Dots under Interaction with Ammonia Molecules in Microconcentrations

2016 ◽  
Vol 8 (4(1)) ◽  
pp. 04032-1-04032-5
Author(s):  
V. P. Mitsai ◽  
◽  
A. G. Misyura ◽  
S. V. Kryvets ◽  
Ya. P. Lazorenko ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Cdte Quantum Dots ◽  
Coumarin Derivatives

Electrostatic repulsion strategy for highly selective and sensitive “switch–on” fluorescence sensor of ascorbic acid based on the cysteamine-coated CdTe quantum dots and cerium (IV)

2021 ◽  
Author(s):  
Yifei Guo ◽  
Jingjing Du ◽  
Jianjun Li ◽  
Ran Yang ◽  
Peter B. de Harrington ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Ascorbic Acid ◽  
Hydrothermal Method ◽  
Cadmium Chloride ◽  
Fluorescence Sensor ◽  
Cdte Quantum Dots ◽  
Electrostatic Repulsion ◽  
Functional Monomer ◽  
Simple Hydrothermal Method ◽  
Cdte Qds

In this work, cysteamine-coated CdTe quantum dots (CA-CdTe QDs) were synthesized by a simple hydrothermal method employing cadmium chloride as the cadmium source and cysteamine hydrochloride as the functional monomer....

A simple paper-based approach for arsenic determination in water using hydride generation coupled with mercaptosuccinic-acid capped CdTe quantum dots

2020 ◽  
Vol 12 (21) ◽  
pp. 2718-2726
Author(s):  
Oraphan Thepmanee ◽  
Kanlaya Prapainop ◽  
Obnithi Noppha ◽  
Nuanlaor Rattanawimanwong ◽  
Weena Siangproh ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Hydride Generation ◽  
Cdte Quantum Dots ◽  
Mercaptosuccinic Acid ◽  
Cdte Qds ◽  
Arsenic Detection ◽  
Detection Probe ◽  
Arsenic Determination

Paper-based device with MSA-CdTe QDs as arsenic detection probe is presented.

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